President Trump allowed the deadline for candidates to drop out to pass Tuesday without making an endorsement in the hotly contested Republican Texas Senate primary runoff race. Texas Attorney General Ken Paxton is taking on incumbent Sen. John Cornyn (R-Texas) in the May 26 runoff, after neither candidate received 50% of the vote in the primary earlier this month. Trump had previously said he would ask whichever candidate did not receive his endorsement to drop out of the race. Paxton has said he would be willing to drop out if Senate Republicans agreed to roll back the filibuster and pass...